86256186281 has 4 divisors (see below), whose sum is σ = 87718155600. Its totient is φ = 84794216964.

The previous prime is 86256186259. The next prime is 86256186283. The reversal of 86256186281 is 18268165268.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86256186281 is a prime.

It is a super-2 number, since 2×86256186281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86256186283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730984571 + ... + 730984688.

It is an arithmetic number, because the mean of its divisors is an integer number (21929538900).

Almost surely, 2^86256186281 is an apocalyptic number.

It is an amenable number.

86256186281 is a deficient number, since it is larger than the sum of its proper divisors (1461969319).

86256186281 is a wasteful number, since it uses less digits than its factorization.

86256186281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461969318.

The product of its digits is 2211840, while the sum is 53.

The spelling of 86256186281 in words is "eighty-six billion, two hundred fifty-six million, one hundred eighty-six thousand, two hundred eighty-one".